What does Time Machine forget?

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Published at: 2019-09-22 15:23:45 +0000


Time Machine backups skip a bunch of files. Some you might expect, some might surprise you!


~/Library


Trash, caches and pretty much everything in CloudKit is missing:


./Library/Caches/Apple Docs Helper

./Library/Caches/CloudKit/CloudKitMetadata

./Library/Caches/CloudKit/com.apple.CloudKit.ShareBear

./Library/Caches/CloudKit/com.apple.Notes

./Library/Caches/CloudKit/com.apple.Safari

./Library/Caches/CloudKit/com.apple.accountsd

./Library/Caches/CloudKit/...

./Library/Caches/FamilyCircle

./Library/Caches/GameKit

./Library/Caches/GeoServices

./Library/Caches/PassKit/

./Library/Caches/SentryCrash/KnockKnock

./Library/Caches/Transmit

./Library/Caches/ckkeyrolld


./Library/Application Support/CloudDocs/session/db/client.db

./Library/Assistant/SiriAnalytics.db

./Library/LanguageModeling/       274-dynamic.lm     # Yes, with that many spaces!

./Library/Keyboard/en-dynamic.lm

./Library/Logs/CoreSimulator

./Library/Mobile Documents/2BUA8C4S2C~com~agilebits~onepassword

./Library/Mobile Documents/...

./Library/Saved Application State

./Library/Suggestions

./Library/studentd/Events


Expect App's App Containers to be missing their Caches contents as well, such as:


./Library/Containers/2BUA8C4S2C.com.agilebits.onepassword-osx-helper/Data/Library/Caches/

./Library/Containers/2BUA8C4S2C.com.agilebits.onepassword-osx-helper/Data/Library/Logs/


Little bit unusual...


These are a bit strange and I didn't expect them.


These seems that Microsoft chose to exclude them manually.


./Library/Application Support/com.panic.Transmit/com.microsoft.appcenter

./Library/Application Support/com.panic.Transmit/com.microsoft.appcenter/Logs.sqlite

./Library/Application Support/com.panic.Transmit/com.microsoft.appcenter/crashes

./Library/Application Support/com.panic.Transmit/com.microsoft.appcenter/...

./Library/Application Support/com.kapeli.dashdoc/com.microsoft.HockeyApp


The Voice Memos iPad App On The Mac seems to exclude the one bit of data it is responsible for saving... recordings...


./Library/Application Support/com.apple.voicememos/Recordings/20181205 102228.m4a

./Library/Application Support/com.apple.voicememos/Recordings/.CloudRecordings_SUPPORT


Probably to be expected:


./.Trash


Developer


Expect to be missing almost all simulator related data and derived data:


./Library/Developer/CoreSimulator/Devices/0084C510-2C24-49F3-B876-565820EEBC37

./Library/Developer/Xcode/DerivedData/Cookiemon-gyciavqcplwebdhaogathqhimohh

./Library/Developer/Xcode/UserData/IB Support/Simulator Devices/1489CAE9-28C3-497E-808F-F36ADE04E85B


Photos


I covered in another blog post that the key Photos Photo Library database file is missing:


./Pictures/Photos Library.photoslibrary/database

./Pictures/Photos Library.photoslibrary/database/photos.db

./Pictures/Photos Library.photoslibrary/database/photos.db-wal

./Pictures/Photos Library.photoslibrary/database/photos.db.lock


Missing this and all its associated files needed to restore Photo Libraries without data loss.


In addition to that, a bunch of photo analysis data is missing such as:


./Pictures/Photos Library.photoslibrary/private/com.apple.photoanalysisd/GraphService/PhotosGraph/construction-photosgraph.graphdb


Music


Oddly enough...


./Music/iTunes/Album Artwork/Cache






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